#include<bits/stdc++.h>

using namespace std;

//二重循环
int main() {
    int n = 10;
    int x, y;
    for (x = 0; x < n; x++) {
        for (y = 0; y <= x; y++) {
            printf("* ");
        }
        printf("\n");
    }
    return 0;
}
